Lubricating device.



C. G. CUNNINGHAM.

LUBRICATING DEVICE.

APPLICATION FILED 050.30. 1916.

1,236,68 1 a Patented Au 14,1917.

GHARLES e. CUNNINGHAM, or NEW YonK, N. COMPANY, me, or NEW YORK, N. Y., A

Y., ASSIGNOR T0 ELEVATOR SUPPLIES CORPORATION OF NEW JERSEY.

LUBRIGATING DEVICE.

Specification of Letters Patent.

Patented Aug. 14, 191?.

Application filed December 80, 1916. Serial No. 139,788.

To all whom it may concern:

Be it known that I, CHARLES G. CUNNING- HAM, a citizen of the United States, residing at New York, in the county of Bronx, State of New York, have made a certain new and useful Invention in Lubricating Devices, which the following is a specification.

This invention relates to lubricating devices and particularly to devices of this type which are used in connection with elevators, to lubricate the guides or the like which the elevators run.

The object of the invention is to provide a lubricating device of the character described which is of simple structure, economical of manufacture and efficient in operation.

A further object of the invention is to provide an elevator lubricator' which is pump actuated and wherein indirect actuation of the pump is secured whether the lubricator is actuated by the swaying movement of the car, or by cleats carried by the guide rail.

Further objects of the invention will appear more fully hereinafter.

The invention consists substantially in the construction, combination, location and relative arrangement of parts, all as will be more fully hereinafter set forth, as shown by the accompanying drawing, and finally pointed out by the appended claims.

Referring to the drawing:

Figure l is a top plan view of a lubricator embodying my invention, showing the cleat actuating apparatus.

Fig. 2 is a sectional view- 0f the same, taken on the line 22, Fig. 1 and looking in the direction of the arrows.

Fig. 3 is a top plan view showing a lubricator embodying my invention which is actuated by the swaying movement of the car.

Fig. 4: is a side elevation of the same partly broken away.

The same part is designated by the same reference numeral wherever it occurs throughout the several views.

In my Patents Nos.- 1,181,438- and 1,198,704, issued to me on May 2, 1916, and Sept. 19, 1916, is disclosed a construction of lubricating device wherein the lubricant is supplied to the surface to be lubricated by means of a pump piston or plunger operating to deliver the lubricant from a tank to the lubricant applying devices. In the construction shown in the first of said patents, the pump plunger or piston is operated automatically by the swaying movement of an elevator car. In the second of said patents, I show and describe means for positively actuating the pump piston or plunger periodically or at fixed points in the travel of the car or other moving part in connection with which the lubricating device is employed, thereby adapting the device for use without depending upon the swaying motion of the moving part and in situations where there may not be any swaying movement of such part. In both of the above named patents, however, the lubricating device itself is of the same construction, and consists briefly of a lubricant receptacle communicating with a chamber in which operates a piston or plunger extending through the wall of the receptacle which plunger is actuated to pump or force the oil through a valve controlled duct to a distributing pad or the like.

The present invention is directed especially to the construction of the lubricating device itself, and is for a modified structure incorporating therein various improvements over the form shown in my two prior patents above identified, the principal feature being that I eliminate the plunger or piston passing through the wall of the receptacle, thereby avoiding the use of packing and a packing nut, eliminating the possibility of leakage, and greatly decreasing the cost of manufacture and maintenance.

In the drawing, the lubricant receptacle 6 communicates through a valve controlled passage 7 with the chamber 8 formed in the bottom of the receptacle 6, and in which operates the piston or plunger 9, to deliver the lubricant through a valve controlled duct 10, to a packing pad or the like 11 contained in the casing 11, by which the lubricant is applied to the surface to be lubricated, shown in this instance as the stem 13 of an elevator guide T-rail. The pump piston or plunger is normally pressed outwardly in its chamber 8 by means of a spring 14:. Any excess of lubricant supplied to the packing 11 drains back into the tank through duct 12. In the present arm 17 and thereby forces the plunger 9 into the cylinder and consequently the lubricant to the distributing pad. The spring 14 causes the parts to assume their normal position as soon as the arm 29 is out of contact with the rail.

Having now set forth the objects and nature of my invention, what I claim as new construction, the plunger or piston 9 lies agd useful, and of my own invention and dewholly within the receptacle 6 instead 0 passing through the wall thereof.

I provide a lug 16 integral with the casting of the receptacle to which is pivotally 7 connected a two arm lever, one arm 17 of which is outside of the receptacle, while the other arm 18 passes through a slot 19 of the cover 15, and its end bears against the end of the plunger or piston 9, as shown.

I Vhere the lubricator is operated per1odically at fixed points in the travel of the car or other moving part with which thelubrieating device is employed, as shown 1n my Patent No. 1,198,704, I mount a rock shaft 21 in a suitable hearing such as arm or bracket 22, carried by the receptacle 6, and I arrange said shaft to extend transversely across the arm 17 of the two arm lever, and mount on the same the cam 23 to normally bear against the arm 17 at the point of least eccentricity thereof. Arm 24; is connected to the shaft 21, having its free end extended toward and into close proximity to the flange 25' of-the T-rail, at suitable points throughout the length of which are secured clamps 26 which are arranged in the path of travel of the free end of arm 24:, to be engaged thereby, and rocked in one direction or the other according to the direction of travel of the car, and thereby rocking shaft 21, and cam 23, and consequently operating arm 17 and plunger 9 to pump or force the lubricant to the pad, as will be readily understood. In the structure shown in Figs. 1 and 2,'the cover15 is hinged at 26 to allow lubricant to'be supplied to the receptacle,

and to allow ready accessibility to the plunger and chamber.

When the lubricator or pump or plunger isto be operated by the swaying movement of the car, as disclosed in my Patent No. 1,181,438, I secure the cover 15 to the receptacle 6, for example by screws 27, and mount upon the top or cover a suitable hearing or casing 28 through which an arm 29 freely passes. This arm has atone end a pad, such as fiber, indicated at 30, and the other end normally bears against the arm 17 of the two armed lever, which arm, in this instance, as shown in Figs. 3 and 4, extends Thus it will be seen that when the lubricating device is mounted on an elevator, for example, when the elevator sways toward the rail 13, the arm 29 pushes the sire to secure by Letters Patent is,

1. A lubricating device comprising a receptacle to contain lubricant, a pump chamber communicating with said receptacle, a distributing pad, a duct communicating from the pump chamber to said pad, a plunger operating in the pump chamber, and means extending into said receptacle through the open end thereof, for operating said plunger.

2. A lubricating device comprising a receptacle to contain lubricant, a pump chamber communicating with said receptacle, a distributing pad, a duct communicating from the pump chamber to said pad, a duct communicating from said pad to said receptacle, a plunger operating in said pump chamber, and means extending into said receptacle through the top thereof, for actuating said plunger.

3. A lubricating device comprising a receptacle to contain lubricant, a pump chamher communicating with said receptacle, a

pad, a plunger operating in said pump chamher, and means extending into said receptacle through the top thereof for actuating said plunger.

5. In a lubricating device, the combination with a tank and pump piston, of means for operating said piston comprising a two arm lever pivotally carried by said tank, one arm thereof extending into said tank to bear against said piston, and means for rocking the other arm of said lever.

6. The combination with a guide to be lubricated, a tank mounted to move along the guide, a piston to deliver lubricant from the tank to the guide, a two arm lever pivotally carried by said tank, one arm thereof normally bearing against said piston, and means actuated by said guide for rocking the other arm of said lever to actuate said piston.

' 7. A lubricating device comprising a receptacle to contain lubricant, a pump chamber communicating with said receptacle, a rocking the other arm of said lever.

distributing pad, a duct communicating from In testimony whereof I have hereunto set 10 the pump chamber to said pad, a plunger my hand on this 23rd day of December 5 operating in the pump chamber, a two arm A. D., 1916.

lever pivotally carried by said device one arm thereof extending into said receptacle CHARLES G. CUNNINGHAM.

Copies of this patent may be obtained for flve cents each, by addressing the Washington, D. G.

to bear against said plunger, and means for Commissioner of Patents, 

